Visendo SMTP Extender is a full POP3 server for Windows operating systems (also for Windows Server 2008, as a substitute for the missing POP3 service there). It monitors an e-mail drop folder, such as IIS "Mailroot drop", and provides the e-mails to clients for collection via the POP3 protocol.
Visendo SMTP Extender is solving the real problem of sending and receiving emails in...

Toriss is an IIS plug-in that makes the SMTP service immune to Reverse NDR Attacks. Instead of bouncing emails that are sent to invalid users, Toriss will reject the email as soon as the RCPT command is received. Microsoft left this important security feature out of IIS to motivate people to buy its $1500 ISA Server. However, this foolishly allows the server to be used to send spam by way of...